Cardwell, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cardwell, a community in Jefferson County, Montana.
This Afternoon
50°F
Mostly Sunny
Mostly sunny. High near 50, with temperatures falling to around 45 in the afternoon. West wind around 2 mph.
7-day forecast for Cardwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Mostly Sunny | 2 mph W | 0% |
| Tonight | 27°F | Mostly Cloudy | 1 mph WSW | 0% |
| Wednesday | 50°F | Mostly Sunny | 1 mph NW | 0% |
| Wednesday Night | 26°F | Mostly Clear | 1 mph WNW | 0% |
| Thursday | 50°F | Mostly Sunny | 1 to 6 mph SW | 8% |
| Thursday Night | 27°F | Partly Cloudy | 5 mph WSW | 8% |
| Friday | 51°F | Mostly Sunny | 5 to 10 mph WSW | 4% |
| Friday Night | 30°F | Partly Cloudy | 7 to 14 mph SW | 4% |
| Saturday | 53°F | Mostly Sunny | 3 to 9 mph SW | 0% |
| Saturday Night | 30°F | Partly Cloudy | 6 mph SW | 0% |
| Sunday | 58°F | Mostly Sunny | 3 to 8 mph WSW | 1% |
| Sunday Night | 32°F | Mostly Cloudy | 3 mph WSW | 1% |
| Monday | 55°F | Partly Sunny | 2 mph WSW | 2% |
| Monday Night | 32°F | Mostly Cloudy | 0 to 3 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Cardwell (45.865, -111.964). Updated through the day.
Growing snapshot for Cardwell
Last spring frost
May 9
First fall frost
Sep 27
Growing season
139 days
Hardiness zone
5a
More local growing data for Cardwell: nearby ZIP 59721 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Trident, Mt (19.7 mi from Cardwell). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.